The Book of Virtues
Ṣaḥīḥ Muslim 5978
يَا رَبِّ أَصْحَابِي أَصْحَابِي . فَيُقَالُ إِنَّكَ لاَ تَدْرِي مَا أَحْدَثُوا بَعْدَكَ
yā rabbi aṣḥābī aṣḥābī . fayuqālu innaka lā tadrī mā aḥdathūā baʿdaka
Transliteration generated from the Arabic vowel marks
The full narration
Abdullah reported Allah's Messenger (ﷺ) as saying; I shall be there at the Cistern before you, and I shall have to contend for some people, but I shall have to yield. I would be saying:My Lord, they are my friends, they are my friends, and it would be said: You don't know what innovations they made after you
Source
Ṣaḥīḥ Muslim · 5978
Ṣaḥīḥ
- Agreed upon as authentic (al-Bukhārī / Muslim)